package com.itheima.reggie.common;

import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import java.sql.SQLIntegrityConstraintViolationException;

/**
 * 全局异常处理器
 */

@ControllerAdvice(annotations = {RestController.class, Controller.class})
@Slf4j
@ResponseBody
public class GlobalExceptionHandler {

    /**
     * 异常处理方法
     * @param ex
     * @return
     */
    @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public R<String> exceptionHandler(SQLIntegrityConstraintViolationException ex){
        //log.info(ex.getMessage());
        if (ex.getMessage().contains("Duplicate entry")){
            //log.info("进入if判断");
            String[] s = ex.getMessage().split(" ");
            String msg = s[2] + "已存在";
            //log.info("执行完if判断");
            return R.error(msg);
        }
        return R.error("出错了");
    }

    /**
     * 异常处理方法
     * @param ex
     * @return
     */
    @ExceptionHandler(CustomException.class)
    public R<String> exceptionHandler(CustomException ex){
        log.info("业务异常");
        //log.info(ex.getMessage());
        return R.error(ex.getMessage());
    }
}
